/*
 * This is Melet, a salary slip designer. Feed it with data regarding to salary payment, prepare it for print through the graphical presentation, and you have it done.
 * Copyright (C) 2014, AFDiaX
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * This program is based on UMLet, a Free UML Tool for Fast UML Diagrams.
 * To contact the authors of UMLet visit https://code.google.com/p/umlet/people/list
 * To contact the authors of Melet visit https://gna.org/users/gabocze
 */
package com.baselet.element.relation.helper;

import com.baselet.control.SharedUtils;
import com.baselet.control.basics.geom.Point;
import com.baselet.control.basics.geom.PointDouble;
import com.baselet.control.basics.geom.Rectangle;
import com.baselet.control.constants.SharedConstants;
import com.baselet.element.sticking.PointDoubleIndexed;

public class RelationPointHandlerUtils {

	static Rectangle calculateRelationRectangleBasedOnPoints(PointDouble upperLeftCorner, int gridSize, RelationPointList relationPoints) {
		// Calculate new Relation position and size
		Rectangle newSize = relationPoints.createRectangleContainingAllPointsAndTextSpace();
		if (newSize == null) {
			throw new RuntimeException("This relation has no points: " + relationPoints);
		}
		// scale with zoom factor
		newSize.setBounds(
				newSize.getX() * gridSize / SharedConstants.DEFAULT_GRID_SIZE,
				newSize.getY() * gridSize / SharedConstants.DEFAULT_GRID_SIZE,
				newSize.getWidth() * gridSize / SharedConstants.DEFAULT_GRID_SIZE,
				newSize.getHeight() * gridSize / SharedConstants.DEFAULT_GRID_SIZE);
		// Realign new size to grid (should not be necessary as long as SELECTCIRCLERADIUS == DefaultGridSize) and add 1x gridSize to the right end (otherwise the selection-circles would change by 1px because Swing draws only to width-1 instead of width)
		newSize.setLocation(SharedUtils.realignTo(false, newSize.getX(), false, gridSize), SharedUtils.realignTo(false, newSize.getY(), false, gridSize));
		newSize.setSize(SharedUtils.realignTo(false, newSize.getWidth(), true, gridSize) + gridSize, SharedUtils.realignTo(false, newSize.getHeight(), true, gridSize) + gridSize);
		// and move to correct place of Relation
		newSize.move(upperLeftCorner.getX().intValue(), upperLeftCorner.getY().intValue());

		return newSize;
	}

	static PointDoubleIndexed getRelationPointContaining(Point point, RelationPointList points) {
		for (RelationPoint relationPoint : points.getPointHolders()) {
			if (relationPoint.getSizeAbsolute().contains(point)) {
				return relationPoint.getPoint();
			}
		}
		return null;
	}
}
